yeah maybe i should try phoning them. My trip from the chemist to home is 5 minutes in UK temperatures. My next trip will be 12 hours minimum some of it in 40C so I really don't want to risk spoiling it. I also have the hassle of airport scanners etc. I have a doctors letter for the needles but I wonder how they would be with a flask and ice? On our last trip they were very off about my husbands empty metal water bottle. If I could get away with the unused one in a Frio pack it would be the easiest solution.